Kirje

Recording by Topi Sorsakoski.

Recording identifiers

ISRC
FIEFE1200560
Release date of the album this recording appears on
2013-01-01
CopyrightID (CopyrightChains transaction hash)
0x29d996825feb6bb5717b2431effe3db7c0ccade8fe1c5e265b32e837e812edf8
Copyright registration time
2026-06-08T00:51:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:8c7bc29c32b4ae13d77e210c9f20a7160bfe12ae1ff7d5240d050d72cca63540

What this proof establishes

This recording was released in 2013, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.